countercurrent


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Related to countercurrent: countercurrent extraction, countercurrent mechanism, Countercurrent multiplier

countercurrent

 [kown´ter-ker″ent]
flowing in an opposite direction.

count·er·cur·rent

(kown'ter-ker'ent),
1. Flowing in an opposite direction.
2. A current flowing in a direction opposite to another current.

countercurrent

/coun·ter·cur·rent/ (-kur″ent) flowing in an opposite direction.

countercurrent

a change in the direction of flow of a fluid. An example is the countercurrent in the ascending branch of a kidney tubule where osmolality undergoes a reversal after a gradual change in sodium chloride concentrations.

countercurrent

flowing in an opposite direction.

countercurrent exchanger
a countercurrent system in which transport between the inflow and the outflow is passive.
countercurrent multiplier
a mechanism that enables a membrane to absorb much more solute than water so that the residual fluid has a lower osmotic pressure. The classical example of this phenomenon is the loop of Henle in the kidney. Called also countercurrent multiplier mechanism or system.
References in periodicals archive ?
The work focused on identifying and quantifying the tocopherol (T) and tocotrienols (T3) by manipulating the pressure and the temperature of the countercurrent (CC) SFE process.
During the warm, positive phase of the PDO, the California Current is weakened and the Countercurrent is strengthened.
Company offers a full range of Wiggert planetary countercurrent and twin shaft mixers, along with MobilMat mixing and batch plants geared to 20-160 yd.
This season coincides with the declining northwestern winds that induce upwelling and the start of a nearshore countercurrent with poleward flow (Lynn & Simpson 1987, Zaitsev et al.
There had always been a "strong millenarian countercurrent in American religious and secular thought," according to historian Walter McDougall, (7) so it didn't take much to produce the transformation.
About 100 to 200 meters below, a swift countercurrent flows in the opposite direction.
In the reservoir, spontaneous imbibition can take place both in cocurrent and countercurrent flowing modes (Bourbiaux and Kalaydjian, 1988; Zhou et al.
pneumoniae isolates were serotyped by using countercurrent immunoelectrophoresis with serotype K antiserum.
Finally, in the last two essays in the collection, we find a note of healthy countercurrent in the Italian political economy to some of the most disturbing trends in world politics and capitalism.
1994) designed an automated bench-scale countercurrent biosorption system (CBS) for the removal of metals from aqueous effluents.
The self-announcing assertiveness he speaks of all but crowds out any countercurrent of nuance.
A lung puncture study using countercurrent immunoelectrophoresis technique (CIE), done among children admitted with severe acute lower respiratory infection (SALRI) at Postgraduate Institute of Medical Education & Research (PGIMER) Chandigarh, found Haemophilus influenzae in 15.